From nobody Sun Feb 8 06:54:32 2026 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.10]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 6D93A286D5A; Tue, 6 May 2025 16:48:20 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.10 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1746550102; cv=none; b=VDr8xWq25vavXl7c8JarQHxg6qxZWwszO/rfeb9jKoNWTxjTkvOyuUPTQp25r1gqFV2zPzz4sCPjyLFpt+Z6SXZlSBm6fzG7WkI9Pa8PdnZjLmbMlZV/6ukNCvytEp2/Sb43Sks9/fV+iv0mJYNK/jhdN5LfiX4jPTfiM4Y8p9A= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1746550102; c=relaxed/simple; bh=0mKYVrYQyC2W8elMimVQZxsUfveK3GJxU+vrnQYmQLQ=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=lJxMb0TY8pTL2I5HggZMRlr2U/PdJ5gHrfn6lZL97Tl3IKdhe5HaSpmnVPkRhfbkBGturvMdBxKU386iOmX4Ie2tQwRRXVCbBXcFFb5LLjfZ1kgLcj90qrpjTnnC+IjzX/j6myCBTDFxWtwfq0f4mtrejY8UjTePa6n/lNN6GZc= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com; spf=none smtp.mailfrom=linux.intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=JtQYD7KW; arc=none smtp.client-ip=192.198.163.10 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="JtQYD7KW" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1746550100; x=1778086100; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=0mKYVrYQyC2W8elMimVQZxsUfveK3GJxU+vrnQYmQLQ=; b=JtQYD7KW7cavEt9sU/Vwzcbf2KDGXGV9iuEfAw4UFxzUPrA39tlAeTd1 cpOeJfHUCkwOSeCiwLEAoY0QWlujN5CCx84BIZHorTGqpZSvWdXJP99Ys ZDvdmiTmITIKWPRpkTDaG1FH+Lsx5qcxgUq64Lt6qlZcbyeDBpbZGVuA7 1EVAxuRNs7+QKa4S7l2aCFIuukPHFGk0TVcPiMZY/8xGuAt0mcQxEDa52 WrzYrzMyJHyOQGN+nXXHNo/HO7V3XJBttD/DERgaH6VvuhI9AwRJV1XLf rIW5XpC/d4ce6hWPafssC8K5DLbJoUTQGTn3HbaYWUcYJyzCjYTdmlOoj Q==; X-CSE-ConnectionGUID: 49i1oNL1QHGFkIfEkx3Ymw== X-CSE-MsgGUID: ic/Cy9WXRGqq/WxpI9WDHw== X-IronPort-AV: E=McAfee;i="6700,10204,11425"; a="59595307" X-IronPort-AV: E=Sophos;i="6.15,266,1739865600"; d="scan'208";a="59595307" Received: from fmviesa007.fm.intel.com ([10.60.135.147]) by fmvoesa104.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 06 May 2025 09:48:20 -0700 X-CSE-ConnectionGUID: ZCUbzolUTCacK7kXTNKhsw== X-CSE-MsgGUID: OzRrGi+rRiGr5rEoFMTNWA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.15,266,1739865600"; d="scan'208";a="135674885" Received: from kanliang-dev.jf.intel.com ([10.165.154.102]) by fmviesa007.fm.intel.com with ESMTP; 06 May 2025 09:48:18 -0700 From: kan.liang@linux.intel.com To: peterz@infradead.org, mingo@redhat.com, namhyung@kernel.org, irogers@google.com, mark.rutland@arm.com, linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org Cc: eranian@google.com, ctshao@google.com, tmricht@linux.ibm.com, Kan Liang , Vineet Gupta Subject: [RFC PATCH 10/15] arc/perf: Remove driver-specific throttle support Date: Tue, 6 May 2025 09:47:35 -0700 Message-Id: <20250506164740.1317237-11-kan.liang@linux.intel.com> X-Mailer: git-send-email 2.38.1 In-Reply-To: <20250506164740.1317237-1-kan.liang@linux.intel.com> References: <20250506164740.1317237-1-kan.liang@linux.intel.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: Kan Liang The throttle support has been added in the generic code. Remove the driver-specific throttle support. Besides the throttle, perf_event_overflow may return true because of event_limit. It already does an inatomic event disable. The pmu->stop is not required either. Signed-off-by: Kan Liang Cc: Vineet Gupta --- arch/arc/kernel/perf_event.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/arch/arc/kernel/perf_event.c b/arch/arc/kernel/perf_event.c index 6e5a651cd75c..ed6d4f0cd621 100644 --- a/arch/arc/kernel/perf_event.c +++ b/arch/arc/kernel/perf_event.c @@ -599,10 +599,8 @@ static irqreturn_t arc_pmu_intr(int irq, void *dev) =20 arc_perf_event_update(event, &event->hw, event->hw.idx); perf_sample_data_init(&data, 0, hwc->last_period); - if (arc_pmu_event_set_period(event)) { - if (perf_event_overflow(event, &data, regs)) - arc_pmu_stop(event, 0); - } + if (arc_pmu_event_set_period(event)) + perf_event_overflow(event, &data, regs); =20 active_ints &=3D ~BIT(idx); } while (active_ints); --=20 2.38.1